Physics-
General
Easy
Question
A particle of mass m moving with a velocity u makes an elastic one dimensional collision with a stationary particle of mass m establishing a contact with it for extremely small time T. Their force of contact increases from zero to F0 linearly in time 
, remains constant for a further time 
and decreases linearly from F0 to zero in further time as shown. The magnitude possessed by F0 is
The correct answer is:
Change in momentum = Impulse
= Area under force-time graph
\ 
Area of trapezium
Þ 
Þ 
Þ
Related Questions to study
Physics-
The force required to stretch a spring varies with the distance as shown in the figure. If the experiment is performed with the above spring of half length, the line OA will
The force required to stretch a spring varies with the distance as shown in the figure. If the experiment is performed with the above spring of half length, the line OA will
Physics-General
Physics-
Figure shows the F-x graph. Where F is the force applied and x is the distance covered
by the body along a straight line path. Given that F is in newton and x in metre, what is the work done ?
Figure shows the F-x graph. Where F is the force applied and x is the distance covered
by the body along a straight line path. Given that F is in newton and x in metre, what is the work done ?
Physics-General
Physics-
The potential energy of a particle varies with distance x as shown in the graph.
The force acting on the particle is zero at
The potential energy of a particle varies with distance x as shown in the graph.
The force acting on the particle is zero at
Physics-General
Physics-
The force acting on a body moving along x-axis varies with the position of the particle as shown in the fig.
The body is in stable equilibrium at
The force acting on a body moving along x-axis varies with the position of the particle as shown in the fig.
The body is in stable equilibrium at
Physics-General
Physics-
The potential energy of a system is represented in the first figure. the force acting on the system will be represented by
The potential energy of a system is represented in the first figure. the force acting on the system will be represented by
Physics-General
Physics-
A force 
acting on an object varies with distance 
as shown here. The force is in newton and in metre. The work done by the force in moving the object from 
to 
is
A force acting on an object varies with distance as shown here. The force is in newton and in metre. The work done by the force in moving the object from to is
Physics-General
Physics-
The adjoining diagram shows the velocity versus time plot for a particle. The work done by the force on the particle is positive from
The adjoining diagram shows the velocity versus time plot for a particle. The work done by the force on the particle is positive from
Physics-General
Physics-
The relation between the displacement X of an object produced by the application of the variable force F is represented by a graph shown in the figure. If the object undergoes a displacement from 
to 
the work done will be approximately equal to
The relation between the displacement X of an object produced by the application of the variable force F is represented by a graph shown in the figure. If the object undergoes a displacement from to the work done will be approximately equal to
Physics-General
Physics-
A particle of mass 0.1 kg is subjected to a force which varies with distance as shown in fig. If it starts its journey from rest at , its velocity at 
is
A particle of mass 0.1 kg is subjected to a force which varies with distance as shown in fig. If it starts its journey from rest at , its velocity at is
Physics-General
Maths-
Consider the circuit,
If the probability that each switch is closed is p, then find the probability of current flowing through AB
Consider the circuit,
If the probability that each switch is closed is p, then find the probability of current flowing through AB
Maths-General
Chemistry-
0.45 gm of acid (MW = 90) was exactly neutralised by 20 ml. of 0.5 N NaOH. Basicity of the acid is
0.45 gm of acid (MW = 90) was exactly neutralised by 20 ml. of 0.5 N NaOH. Basicity of the acid is
Chemistry-General
Chemistry-
Arrange the following in order of increasing reactivity(least most) towards nucleophile
1) 
2) 
3) 
Arrange the following in order of increasing reactivity(least most) towards nucleophile
1)
2)
3)
Chemistry-General
Chemistry-
Which of the following is the correct order of decarboxylation of p-keto carboxylateanion?
Which of the following is the correct order of decarboxylation of p-keto carboxylateanion?
Chemistry-General
Physics-
If 
and 
represent the work done in moving a particle from A to B along three different paths 1, 2 and 3 respectively (as shown) in the gravitational field of a point mass m, find the correct relation between and
If and represent the work done in moving a particle from A to B along three different paths 1, 2 and 3 respectively (as shown) in the gravitational field of a point mass m, find the correct relation between and
Physics-General
Physics-
A ball is attached to a horizontal cord of length L whose other end is fixed a peg is located at a distance h (= 4L/5) directly below the point of attachment of the cord. What will be the speed of the ball when it reaches the top of its circular path about the peg?
A ball is attached to a horizontal cord of length L whose other end is fixed a peg is located at a distance h (= 4L/5) directly below the point of attachment of the cord. What will be the speed of the ball when it reaches the top of its circular path about the peg?
Physics-General
